本文選題：熱敏 + 剪應力　； 參考：《實驗流體力學》2017年03期

【摘要】：河口海岸泥沙運動直接受制于床面剪應力的大小,因此通過床面剪應力來研究泥沙運動基本問題是泥沙運動理論研究的重要途徑,然而目前尚未有效形成波流復雜動力作用下床面剪應力的量測計算方法。本文利用基于微納米技術的熱敏式剪應力新型儀器,在波流長直水槽內開展了床面剪應力量測研究工作。研究表明,熱敏剪應力儀響應頻率高、穩(wěn)定性好,量測成果較好地反映了波流作用下床面剪應力變化基本規(guī)律,熱敏剪應力儀可用于波流等復雜動力作用下床面剪應力的量測。根據試驗量測成果,提出了波流合成剪應力計算初步方法,可為復雜動力作用下泥沙運動基本理論問題的深入研究提供參考。
[Abstract]:The sediment movement in the estuary and coastal area is directly affected by the size of the shear stress in the bed surface. Therefore, it is an important way to study the basic sediment movement through the shear stress of the bed surface. However, the method of measuring the shear stress of the bed surface shear stress under the complex dynamic action of wave flow has not been effectively formed. A new type of thermosensitive shear stress instrument has been developed for the study of shear stress in the bed surface. The research shows that the thermosensitive shear stress meter has a high response frequency and good stability. The measurement results reflect the basic law of the change of the shear stress in the bed surface under the action of wave flow, and the thermosensitive shear stress meter can be used in the complex dynamic action of wave flow and so on. According to the test results, a preliminary method for calculating the shear stress of wave flow synthesis is proposed, which can be used as a reference for the deep study of the basic theoretical problems of sediment movement under complex dynamic action.
【作者單位】： 南京水利科學研究院;水文水資源與水利工程科學國家重點實驗室;港口航道泥沙工程交通行業(yè)重點實驗室;河海大學港口海岸與近海工程學院;
【基金】：國家重大科學儀器設備開發(fā)專項項目(2013YQ040911) 國家自然科學基金項目(51309158)
【分類號】：TV148

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